Methods: The NAP activities determined by Naphthol AS-BI phosphate of 63 FUO children (FUO group) and 50 healthy children ( control group) were expressed by the positive rate and the positivescore.

• 方法：以偶氮偶联磷酸奈酚AS-BI法测定63例发热患儿及50例健康儿童外周血中性粒细胞碱性磷酸酶活性，以阳性率和阳性指数表示。